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A220108 Number of nX3 arrays of the minimum or maximum value of corresponding elements and their horizontal and vertical neighbors in a random 0..3 nX3 array 0
56, 4020, 252520, 16187862, 1028824446, 65676456950, 4186526618878, 266969050965322 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A220109

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=3

..0..1..1....1..1..2....1..0..0....1..0..0....0..1..0....1..0..2....3..1..0

..3..1..1....0..0..1....3..2..3....3..2..3....3..3..1....0..2..3....1..3..2

..1..3..1....1..2..2....2..2..0....2..0..2....2..3..2....2..1..0....0..3..0

CROSSREFS

Sequence in context: A278724 A277770 A239816 * A003747 A049033 A271138

Adjacent sequences:  A220105 A220106 A220107 * A220109 A220110 A220111

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 05 2012

STATUS

approved

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Last modified May 19 18:35 EDT 2022. Contains 353847 sequences. (Running on oeis4.)